Driver error in Firefox Quantum with Selenium and XUL

Question

Version:

Ubuntu 16.04
Mozilla Firefox 58.0
Selenium-3.7.0

Example code:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from selenium import webdriver

profile = webdriver.FirefoxProfile()
profile.set_preference("browser.privatebrowsing.autostart", True)
driver = webdriver.Firefox(profile)

Error in Firefox with Python-Selenium:

XML read error: entity not defined
Location: chrome://browser/content/browser.xul
Line number 1165, column 7:
      <menuitem class="pageActionContextMenuItem extensionUnpinned"
------^

Note: The error also appears if you use FIrefox Quantum in Ubuntu 12.

@OlafSzmidt #!/usr/bin/env python and # -*- coding: utf-8 -*- ?? — jbelenus, Nov 21 '17 at 11:29
IMO, `Firefox Quantum (Released)` version is **`57.0`** Are you using `Mozilla Firefox Quantum v58.0` from **`Nightly`** / **`Beta`** / **`Developers`** ? — undetected Selenium, Nov 21 '17 at 12:19
@DebanjanB I am using repository ppa:mozillateam/firefox-next — jbelenus, Nov 21 '17 at 12:38
https://stackoverflow.com/questions/42315187/is-selenium-ide-an-xul-add-on-in-firefox — jbelenus, Nov 22 '17 at 07:54
@jbelenus I am experiencing the same issue (while just starting firefox w/o selenium or anything). I created a bugreport here: https://bugzilla.mozilla.org/show_bug.cgi?id=1420775 Feel free to chime in. — Zulakis, Nov 26 '17 at 22:53

score 0 · Accepted Answer · answered Nov 22 '17 at 08:23

Explanation: Is selenium IDE an XUL add-on in Firefox?

Solution, use a old version to 58 of Firefox:

sudo apt-get remove --purge firefox
sudo add-apt-repository ppa:ubuntu-mozilla-daily/firefox-aurora
sudo apt-get update
sudo apt-get install firefox=57.0+build4-0ubuntu0.16.04.5

Thanks to @DebanjanB

Driver error in Firefox Quantum with Selenium and XUL

1 Answers1